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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7711) rowlock release problem with thread interruptions in batchMutate
Date Tue, 29 Jan 2013 21:07:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13565805#comment-13565805
] 

Matteo Bertozzi commented on HBASE-7711:
----------------------------------------

Should we use something like, to preserve the stack trace?
{code}
InterruptedIOException ie = new InterruptedIOException(e.getMessage());
ie.initCause(e);
{code}
                
> rowlock release problem with thread interruptions in batchMutate
> ----------------------------------------------------------------
>
>                 Key: HBASE-7711
>                 URL: https://issues.apache.org/jira/browse/HBASE-7711
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jonathan Hsieh
>            Assignee: Ted Yu
>             Fix For: 0.96.0
>
>         Attachments: 7711.txt
>
>
> An earlier version of snapshots would thread interrupt operations.  In longer term testing
we ran into an exception stack trace that indicated that a rowlock was taken an never released.
> {code}
> 2013-01-26 01:54:56,417 ERROR org.apache.hadoop.hbase.procedure.ProcedureMember: Propagating
foreign exception to subprocedure pe-1
> org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable via timer-java.util.Timer@1cea3151:org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable:
org.apache.hadoop.hbase.errorhandling.TimeoutException: Timeout elapsed! Source:Timeout caused
Foreign E
> xception Start:1359194035004, End:1359194095004, diff:60000, max:60000 ms
>         at org.apache.hadoop.hbase.errorhandling.ForeignException.deserialize(ForeignException.java:184)
>         at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.abort(ZKProcedureMemberRpcs.java:321)
>         at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.watchForAbortedProcedures(ZKProcedureMemberRpcs.java:150)
>         at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.access$200(ZKProcedureMemberRpcs.java:56)
>         at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs$1.nodeChildrenChanged(ZKProcedureMemberRpcs.java:112)
>         at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:315)
>         at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:519)
>         at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)
> Caused by: org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable: org.apache.hadoop.hbase.errorhandling.TimeoutException:
Timeout elapsed! Source:Timeout caused Foreign Exception Start:1359194035004, End:1359194095004,
diff:60000, max:60000 ms
>         at org.apache.hadoop.hbase.errorhandling.TimeoutExceptionInjector$1.run(TimeoutExceptionInjector.java:71)
>         at java.util.TimerThread.mainLoop(Timer.java:512)
>         at java.util.TimerThread.run(Timer.java:462)
> 2013-01-26 01:54:56,648 WARN org.apache.hadoop.hbase.regionserver.HRegion: Failed getting
lock in batch put, row=0001558252
> java.io.IOException: Timed out on getting lock for row=0001558252
>         at org.apache.hadoop.hbase.regionserver.HRegion.internalObtainRowLock(HRegion.java:3239)
>         at org.apache.hadoop.hbase.regionserver.HRegion.getLock(HRegion.java:3315)
>         at org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:2150)
>         at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2021)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.multi(HRegionServer.java:3511)
>         at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364)
>         at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1400)
> ....
> .. every snapshot attempt that used this region for the next two days encountered this
problem.
> {code}
> Snapshots will now bypass this problem with the fix in HBASE-7703.  However, we should
make sure hbase regionserver operations are safe when interrupted.

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